Answer:
$478.80
Step-by-step explanation:
We have been given that 15 players two coaches and 21 parents attend this year sports banquet the cost of each meal was $12 plus 5% sales tax.
First of all, we will find cost of each meal with tax as:




Now, we will find total persons at the sport banquet as:


To find the total cost of food for the banquet, we will multiply cost of food for each person by 38.


Therefore, the total cost of food for the banquet is $478.80.
You did not provide a table however I used
x y
0 -1
3 1
(I tried to make a table above with x,y)
The x intercept is (3/2, 0)
The y intercept is (0, -1)
Slope 2/3
See pic for graph